What Is Creosote And Why Is it Dangerous?

Creosote is a dark brown residue that forms on the inner walls of chimneys and stovepipes during the incomplete burning of organic matter like wood. Creosote buildup is dangerous because it can lead to smoke exposure, fire damage, and health problems. Creosote buildup occurs in three levels of increasing severity, and it is caused by factors such as cool flue temperatures, restricted airflow, and the use of unseasoned firewood. Creosote can be removed with chemical treatment, and it is recommended to have a professional chimney sweep clean your chimney once a year to avoid buildup.